Lucene search
+L

MCP Atlassian: DNS-rebinding TOCTOU bypass of the SSRF fix (CVE-2026-27826)

🗓️ 10 Jul 2026 18:01:22Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 39 Views

Incomplete DNS rebinding SSRF fix in Atlassian header validation; no IP pinning.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-27826
10 Mar 202618:46
–attackerkb
circl
Circl
CVE-2026-27826
24 Feb 202611:57
–circl
cnnvd
CNNVD
MCP Atlassian code issues and vulnerabilities
10 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-27826
10 Mar 202618:46
–cve
cvelist
Cvelist
CVE-2026-27826 MCP Atlassian has SSRF via unvalidated X-Atlassian-Jira-Url / X-Atlassian-Confluence-Url headers
10 Mar 202618:46
–cvelist
euvd
EUVD
EUVD-2026-10788
10 Mar 202618:48
–euvd
euvd
EUVD
EUVD-2026-10789
10 Mar 202618:46
–euvd
euvd
EUVD
EUVD-2026-84621
22 Sep 202617:52
–euvd
euvd
EUVD
EUVD-2026-84627
22 Sep 202617:58
–euvd
euvd
EUVD
EUVD-2026-84759
22 Sep 202618:47
–euvd
Rows per page
Vulners
Node

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

10 Jul 2026 18:01Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.18.2
EPSS0.01042
SSVC
39